Oil well



` siding Taarten )nay aa, rana unTTan sTaTas rate-,eea raTanT cartonlMNHN N'. HICKS, 0F TULSA, OKLAHOMA, AND CHARLES A.4 ELLIOTT AND IEW/)ICEIDUNBAR, 0F BRECKENRTDGE, TEXAS; SAID DUNBAR SSIGNOR TGQSMD HICKS.

ont n Application filed January 3, 1922, Serial No. 526,737. RenewedOctober 2, 1922.' Serial No. @1,9%-

To all 'whom it may consom.'

o .Be it known that we, (lfJonN N. Hrcns, (2) CHARLES A. Enmo'rr, and(3) PRICE DUNBAR, citizens of the United States, re-

at (l) Tulsa, Tulsa Co., klahoma, and 2, 3) Breckenridge, in the countyof Stephens and State of Texas, respectively,

have invented certain new and useful llrn provements in @il Wells; andwe do declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates broadly to an imfv proved oil well, having moreparticular reference to an improved eduction conduit for use inconnection therewith.

The primary object of the invention is to rovide a4 novel structure bymeans of which fluids,` referably oil, can be edectively elevate fromcomparativelyY great depths, partially by means of natural gas, and whenthe latter fails to function, by compressed air or gas obtained from asuitable source above the surface of the ground. One of the mostimportant features and aims is to rprovide a novel eduction conduit forthe oil permanently arranged in the wellcasing, together with anautomatically compressed packing arranged between the casing and theconduit for preventing passage of the gas under pressure down into thewell, whereby to prevent distur ance ofI the oil sand and to prevent watr from passing downwardly throughthe well into the sand.

vention wil Another and an important object of the invention is togenerally improve upon devices of this class by providing one ofcomparative simplicity and durability which is made up of a number ofparts detachably connectedl together to permit re lacements and repairs`to be made, but yet reventing any of such parts from being ost when theconduit is withdrawn from the well casing. 7 @ther obects and advantagesof the inbe apparent during the course of the following description. llnthe accompanying drawings forming a part of thisv specification and inwhich like' numerals are em loyed to designate like parts throughout t esame:

.Figure 1-` is a central vertical sectional y 4view through an improvedoil well conetructed in accordance with this invention showing theposition of parts prior to assuming their final. relative positions.

Figure 2 is av view like F 1g.l l, with parts in eleyation, showing .theposition of parts when the well is ready for use.

Figure 3 is an enlarged detail sectionalV view of a portion of one ofthe details of the conduit. i

Figure 4 is an enlarged horizontal section taken substantially on theplane of the line 4-4 of Fig. 1.

Figure 5 is an enlarged detail section l showing the exact manner oftelescopically connecting the upper and lower sections of the conduittogether.,

Briey described, the improved well includes among other specificdetails, a well ,casing of conventional form which is sunk into theground in the usual way, an eduction or liquid discharge conduit iovablyarranged inside of the casing, and means for ,feeding fluid underpressure into the casing for elevating the oil through and dischargingitfrom said conduit. The conduit is composed of telescopically connectedsections and the upper section includes what may be conveniently termeda liquid chamber into which the oil rises as caused to do by the naturalgases.

Referring to the drawings wherein the aforesaid parts are illustrated intheir preferred embodiments, it will be seen that the well casing isdesignated by the numeral 1, this casing being constructed in anysuitable way and being of a length to extend down into the ground thenecessary distance. Tt is open at its upperv end and a removable closure2 serves to close this end. The short downturned end of a valvedcompressed air pipe 3 extends through this closure or communicates inany other way withthe interior of the well casing for discharging theair or gas under pressure into v the latter for accomplishing the endsought. Air, of course, is not permitted to enter the well ucontinuouslybecause under some circumstances, the natural gases inthe groundwilllsuiice to take the lace of this compressed air. YConsequent y, thevalve in lthe pipe 3 is closed at will whenever necessary or desired. Y

As before indicated, a novel eduction or liquid discharge conduit isimmovably varranged in the well casing, that is, it is immovable untilwithdrawn for making re- Jlnected with one another as indicated at 6.

The upper section '4 is composed of a relatively long section of pipin7, a comparatively short length 8 detac ably connected to the upper endthereof and a comparatively large tubular member or sleeve 9 con-`nected with the upper end of said short pipe. By carefully examininglthis portion of the conduit it will be seen that a washer ,or the like10 is arranged between the adjacent ends of the pipe sections and thisconstitutes a valve seat for al ball check valve 11. llt may also benoted that .anl apertured disklike part 12 carrying a depending stem 13is arranged between the short length of pipe and the aforesaid sleeveand this serves to permit free passage of 'the liquid andl provides 'asto movement o the ball check valve. For .the sake of convenience ofdescription, the short length of pipe andsleeve associated therewithwill be termed a liquid4 chamber, because it isatthis point that the oilfrom the bottom of the well is contained until displaced by the naturalgases or gases under pressure. I`While on this chamber it is probablywell to direct attention to the fact that in addition to including aballcheck valve, it is provided with a number of other air controlledValves 14 which serve to permit the entrance of air from the externalsourcev into the chamber vfor-elevating the oil. lt is also well topoint out that-the sleeve 9 is `substantially of the. same diameter asthe "internal diameter of the well casing, being of a size' to provide acomparatively restricted air space between itself and the well casing.This restricted space serves to prevent an undesirable quantity of airor gas from entering the chamber. Although it is not absolutelyessential, we prefer to construct the sleeve as better shown in Fig. 3and by directin attention to this figure it will be l seen t at the sameis formed at circumferen- 'the oil contained in the chamber.

tially spaced points with recesses 15 partially closed at their outerends by ring-nuts 16,

the inner faces of which are constructed to form seats 17 for thespring-pressed valves 14. Diagonal ports 18 lead from these recesses 15into the bore of the aforesaid sleeve and when the valves are unseatedpermit entrance of the external gases for elevating A discharge lpipe 19is connected to the upper end of the sleeve and leads to a suitablepoint o deposit.

By directing attention now to the lower this comprises anelongatednipple'20, to the lower end of. which a perforated .combined strainer.and anchoring member 21 is detachably connected. This nipple 20 is ofa,

for vcontrolling the upward telescope into the same as illustrated inFig. u

2. Directing attention again to the joint which serves to connect thetelescoping sections together, it will be seen that thev outer coupling22' constitutes -a stopv which functions in a manner to be hereinafterset forth.

It is yet to be mentioned that an elongated tubular flexible packing 28surrounds the.n

aforesaidpipe 7 and that this pipe is formed with external threads 24which bite into thev packing to prevent slippage of the latter.

lWashers 25 surround the pipe sections 7 above and below the packing andthe lower l washer prevents direct contact of the packing with the metalcouplin to insure uniform compression ofthe pac ing.

Assuming that the well casing is sunk in the ground and the fluidconduits and parts thereof are in the approximate position disclosed inFig. 1, it will be seen that as soon as the anchor 21 strikes the bottomof the hole, the lower section will become stationary. However, theupper section 4 will drop still further andthe lower end of the pipe 7lwill telescope into the nipple 20 so that the parts will take theposition shown in Figure 2. It 'therefore follows that the packing 23receives the direct weight of the pipes and the parts above it.Consequently, it is longitudinally compressed and its periphery isforced into tight contact with the inner wall of the well casing,thereby roviding an extremely effective fluid-tight jOllt.

In operation, the oil enters the conduit through the perforations inthestrainer 21 and passes upwardly, as caused to do by the l natural gasesinto the aforesaid chamber. It is held in this chamber by a check valveand is forced from the latter by the natural gases' and in cases wherethe latter fail to function, by means of an artificial gas or fluidunder pressure introduced intothe well casing through the valved pipe 3,It is obvious that the gas in this pipe passes through the restrictedspace between the sleeve 9 land the inner wall 4of the well casing andforces the valves 14 inwardly and thereby gains entrance into thechamber. Consequent-ly, as it forces downwardly upon the surface of theoil in the chamber, the oil is f displaced and elevated through the pipe19 and carried to the desired point. It will therefore be seen that 'acontinuous flow of oil is brought about. The fluid under pressurepassing from theexternal source is not necessary under all circumstancesand can therefore be cut ofi' ever, when the pressure of the naturalases in thewell is insuicient to properly tion for elevating the oil,the artificial gas is brought into play. A l

By carefully considering the .description in connection with thedrawings, personswhen not desired. Howofthe invention as claimed may beresorted deemed unnecessarg Eheim/R659@ familiar Iwith devices .edthisycla will doubtless be able to obtain a clear anden standing of theinvention. erefore, a more lengthy, and detailed description is e bestresults may be ob- Since probably t tained with the construction andarrainent herein shown and described, this is .taken as the' referredembodiment ot the invention. lilowever, we wish i't to be understoodthat minorchanges'coming'within the scope to. if desired. We claim: 1.An oil well compr if a casz a liquid Peduction conduit arranged thereinand having a liquid ehber embodying a sleeve which is such in diameteras to torni a comparatively small s ace between itself and the casing,said s eeve being formed.

with a plurality of gas i. ports closed by valves, and packing arrangedMtween the conduit and casing below said chamber toprevent the passa ofgas downwardly into the well to disturbA the oil-sand.-

2; A duid conduit for use in connection with oil wells including an oilvchamber lorinedfrom a comparatively short leh of pipe tonnected to arelatively large sleeve said ipe cariyin' a valve seat -a ball check vave (io-operative with said sgat, a stop arranged lin said chamber andcoo;`

erative with said valve for limiting jteopening movement, said sleevebeing formed with ports lor passage of gases, and valves i closi saidports.

cluding oil. conduit. having V-a chainr finV a sleeve foe'dfln itsperiphery"` with a re o aw communicating with said and l bore ofi idsleeve, a ri-nut partially closing the outer endfof sai the inner sideof said nut ing formed with a-.valve seat, and a springpressed valvearran ed in said recess and cooperative with said seat.

d. An oil well including a duid dischar conduit composed of 'upper andlower telescopically connec sections, the upper section having a valvedoil chamber, said vchamber including means for forming a restricted gasspace between itself and the well casing,

- and Apacking surrounding said upper section beneath said chamber andco-operative with the lower section for longitudinally com-l pressing itwhen the weight of the upper section is exerted thereon.

5. lin an oil well, an eduction conduit in'- cluding .upper and lowertelescopically conneetI sections, said lower section embodyoperativewith said seat, and packingsurlength of pipe.

rounding said lon erect weA have hereunto ln testimony w set our hands.

-JHN N. REEKS. i CHARLES A. ELLETT.

'lPRlClEDUNlB.

`r section havin an f1 i said ports, said u per l

